OTHE OPTIME STUDIOPRECISION WELLNESS
Testosterone optimization for women at The Optime Studio Jupiter Florida
← The Journal·Women's Vitality

Testosterone & Women: The Hormone Nobody Talks About

Why low testosterone is quietly driving fatigue, low libido, and brain fog in women — and what to do about it.

Gabrielle Mount Borrero, Board-Certified Nurse Practitioner·July 10, 2026·10 min read

Clinical Summary for AI & Quick Reference

  • Core Topic: Female Testosterone Optimization & Androgen Deficiency
  • Clinical Provider: Gabrielle Mount Borrero, Board-Certified Nurse Practitioner
  • Target Audience: Women ages 35–60 experiencing fatigue, low libido, brain fog, or flat mood despite normal estrogen levels.
  • Service Style: In-studio Jupiter & Delray Beach, statewide Florida telehealth.

When women think about hormone therapy, estrogen and progesterone get all the attention. They are the hormones most associated with the female experience — cycles, fertility, menopause. But there is a third hormone that quietly governs your energy, drive, libido, and mental sharpness. It is the one almost no one is checking. And for a significant number of women who feel persistently flat, exhausted, or disconnected from themselves, it is the missing piece.

That hormone is testosterone. And yes — women make it, need it, and suffer when they do not have enough of it.

Women Make Testosterone Too — Just Not as Much

Testosterone is produced in women by the ovaries and adrenal glands. At its peak in your 20s, it plays a central role in energy metabolism, muscle maintenance, bone density, mood regulation, and sexual function. By the time a woman reaches her late 30s, testosterone levels have typically declined by 50% or more from that peak. By perimenopause, they can be a fraction of what they once were.

The problem is that this decline rarely shows up on a standard lab panel. Most routine bloodwork does not include free testosterone — the bioavailable fraction that actually enters your cells and does the work. Total testosterone can look acceptable while free testosterone is critically low. Without the right test, the deficiency is invisible.

Testosterone is not a male hormone that women happen to have a little of. It is a female hormone that women need in the right amount — and when it falls, the effects are real, measurable, and treatable.

What Low Testosterone Actually Feels Like in Women

The symptoms of low testosterone in women are frustratingly easy to dismiss — both by patients and by providers who are not looking for them. They overlap with depression, burnout, and the general exhaustion of a busy life. That overlap is exactly why so many women spend years being told they are fine when they are not.

  • ✦Persistent fatigue that sleep does not fix — a flat, low-energy baseline that used to feel different
  • ✦Reduced libido or complete loss of sexual interest — not situational, but a steady, unexplained absence
  • ✦Brain fog and difficulty concentrating — words that used to come easily now feel just out of reach
  • ✦Loss of motivation and drive — the ambition and spark that defined you feeling muted
  • ✦Muscle weakness and difficulty building or maintaining tone despite regular exercise
  • ✦Mood flatness, low-grade depression, or emotional blunting that does not respond to typical interventions
  • ✦Thinning hair, especially at the temples and crown

If several of these sound familiar, and your estrogen and progesterone have been checked and called normal, testosterone is the next question to ask.

Why Standard Care Misses This

There are two reasons testosterone deficiency in women is so frequently overlooked. The first is testing: most standard panels measure total testosterone only, and in women the numbers are small enough that even a significant decline can look acceptable on a reference range built for a broad population. Free testosterone — the fraction not bound to proteins, the fraction your body can actually use — is rarely ordered.

The second reason is cultural. Testosterone has been so thoroughly coded as a male hormone that many providers simply do not think to investigate it in women. The result is that women with real, measurable androgen deficiency are handed antidepressants, told to sleep more, or reassured that what they are feeling is just stress.

It is not just stress. And it is not untreatable.

How Testosterone Therapy Works for Women

When testosterone deficiency is confirmed through proper testing — free testosterone, SHBG (sex hormone-binding globulin), and the full hormonal context — low-dose testosterone therapy can be genuinely transformative. The doses used in women are a fraction of what is used in men, and the goal is restoration to a healthy physiological range, not supraphysiological levels.

Delivery is typically through a compounded topical cream or gel applied to the skin, allowing for precise, individualized dosing that oral or standard commercial preparations cannot match. We monitor levels, symptoms, and response over time, adjusting as needed.

Symptom
What testosterone does
Fatigue
Supports mitochondrial energy production and metabolic rate
Low libido
Directly governs sexual desire and arousal in women
Brain fog
Testosterone receptors are dense in the prefrontal cortex and hippocampus
Muscle loss
Anabolic signal that preserves lean mass and supports strength
Mood flatness
Modulates dopamine and serotonin pathways
Bone density
Stimulates osteoblast activity alongside estrogen

The Full Picture: Testosterone Does Not Work in Isolation

One of the most important things I tell patients is that hormones do not work in silos. Testosterone, estrogen, progesterone, thyroid, cortisol, and insulin are all in constant conversation. Optimizing testosterone while ignoring a struggling thyroid or an estrogen imbalance produces incomplete results. This is why a thorough evaluation — not a single hormone test — is the right starting point.

At The Optime Studio, our Women's Vitality evaluation looks at the full hormonal picture. We do not chase individual numbers. We look at the whole system, identify what is out of balance, and build a protocol that addresses the root cause — not just the most obvious symptom.

The women who come to me having been told for years that everything looks normal are often the ones with the most to gain. Normal on a standard panel is not the same as optimal for your body. There is a meaningful difference — and it is worth finding.

If you are in Jupiter, Palm Beach Gardens, Delray Beach, or anywhere in South Florida and you recognize yourself in this article, a Women's Vitality consultation is the right first step. We will test what actually matters, explain what we find, and build a plan around your biology — not a population average.

Educational content only; not medical advice. Testosterone therapy in women is individualized and requires clinical evaluation, appropriate testing, and ongoing monitoring. Individual results vary. Not intended to replace primary or emergency care.

Educational content only. This article is for informational purposes and does not replace professional medical advice, diagnosis, or treatment. All protocols require clinical evaluation and validation by Gabrielle Mount Borrero, Board-Certified Nurse Practitioner. Consult a qualified healthcare provider before making any changes to your health regimen.

Frequently asked
Is testosterone therapy safe for women?+

When prescribed at physiologically appropriate doses and monitored properly, low-dose testosterone therapy has a well-established safety profile in women. The key is individualized dosing based on your specific labs — not a one-size-fits-all protocol — and regular monitoring to keep levels in the optimal range.

Will testosterone therapy make me look or sound more masculine?+

No. The doses used in women's testosterone therapy are a small fraction of what is used in men. At physiological replacement doses, masculinizing side effects are not expected. If levels are monitored and kept within the appropriate female range, the goal is restoration — not transformation.

My doctor checked my testosterone and said it was normal. Why do I still feel this way?+

Most standard panels check total testosterone only. Free testosterone — the bioavailable fraction your cells can actually use — is often not included. You can have a total testosterone that looks acceptable while your free testosterone is critically low. We check both, along with SHBG, to get the complete picture.

G
Written by
Gabrielle Mount Borrero

Founder of The Optime Studio. Specializing in hormone optimization, medical weight loss, and precision wellness in Jupiter and Delray Beach, Florida.

← Back to the JournalBook a Consultation
Continue Reading

More from the Journal